Transnet Freight Rail is a South African rail transport company, formerly known as Spoornet. It was part of the South African Railways and Harbours Administration. Transnet operates more than 30 000 km of rail network across the country.

Its head office is in Inyanda House in Parktown, Johannesburg. It was founded in 1910.

State-owned rail company Transnet Freight Rail (TFR) on 24th October, 2019 launched a 4-km-long train, with 375 wagons, officially making it the longest train in the world.

The train transported about 24 000 t of manganese over a distance of more than 860 km between the Sishen mine, in the Northern Cape, and Saldanha Bay.

This breaks Transnet’s own record of a train with 342 wagons, which transports iron-ore along the same Transnet corridor.

Transnet previously reported that the 375-wagon train was decided on as a result of an increase in the production of manganese in South Africa.

The train takes about eight minutes to pass one by from start to end. The train is said to go a long way in lowering the cost of doing business in the country and migrating traffic from road to rail and will add R355-million in freight revenue yearly. 

According to & wikipedia